Electric fan



FIG. 1 is a front view of the design for a electric fan in accordancewith the present invention;

FIG. 2 is a side view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof, the opposite side being substantiallyidentical to that shown except for the bottom control switch panel; and,

FIG. 6 is a perspective view thereof.

The ornamental design for a electric fan, as shown and described.